public void Radius()
{
var tex = new TextureArray2D(IO.LoadImage(TestData.Directory + "checkers.dds"));
var shader = new PixelValueShader(new SharedModel());
var color = shader.Run(tex, new Size3(1, 1, 0), 0, 0, 1);
// should be 5 times black field + 4 times white field
var expected = new Color(4.0f / 9.0f);
Assert.IsTrue(expected.Equals(color, Color.Channel.Rgb));
color = shader.Run(tex, new Size3(1, 2, 0), 0, 0, 1);
// should be 5 times white + 4 times black
expected = new Color(5.0f / 9.0f);
Assert.IsTrue(expected.Equals(color, Color.Channel.Rgb));
}
public void SmallImage()
{
var tex = new TextureArray2D(IO.LoadImage(TestData.Directory + "small.pfm"));
var refColors = tex.GetPixelColors(0, 0);
// recreate colors by picking them with the shader
var shader = new PixelValueShader(new SharedModel());
var colors = new Color[refColors.Length];
for (int y = 0; y < tex.Size.Height; ++y)
{
for (int x = 0; x < tex.Size.Width; ++x)
{
colors[y * tex.Size.Width + x] = shader.Run(tex, new Size3(x, y, 0), 0, 0, 0);
}
}
TestData.CompareColors(refColors, colors, Color.Channel.Rgb);
}
public void Image3D()
{
var tex = new Texture3D(IO.LoadImage(TestData.Directory + "checkers3d.dds"));
var shader = new PixelValueShader(new SharedModel());
var refColors = tex.GetPixelColors(0);
var colors = new Color[refColors.Length];
int idx = 0;
for (int z = 0; z < tex.Size.Depth; ++z)
{
for (int y = 0; y < tex.Size.Height; ++y)
{
for (int x = 0; x < tex.Size.Width; ++x)
{
colors[idx++] = shader.Run(tex, new Size3(x, y, z), 0, 0);
}
}
}
TestData.CompareColors(refColors, colors);
}
/// <inheritdoc cref="PixelValueShader.Run"/>
public Color GetPixelValue(ITexture image, Size3 coord, int layer = 0, int mipmap = 0, int radius = 0)
{
return(pixelValueShader.Run(image, coord, layer, mipmap, radius));
}
